ASPxDropDownEdit Overview

The ASPxDropDownEdit represents an editor containing an edit box to display the editor value and a specific button, that opens a dropdown window whose content can be templated. The main purpose of the ASPxDropDownEdit is to allow you to define its value based upon the value(s) of other control(s) integrated into the editor's DropDownWindowTemplate.

The image below demonstrates the ASPxDropDownEdit control that contains the ASPxListBox and the ASPxButton controls templated into the ASPxDropDownWindow.

You can use editor's ASPxDropDownEdit.NullText property to display a prompt in the editor's edit box. The prompt text disappears when the editor receives focus.

Customizable Button Collection

The ASPxDropDownEdit control provides a collection to maintain its custom edit buttons. Each button exposes a set of properties allowing the button's appearance and behavior to be defined. You can use the Buttons property to populate button collection.

Built-in Validation

The ASPxDropDownEdit control allows you to perform data validation both on the client and server side. You can specify an editor value as essential, validate it based on a regular expression, or implement a custom validation.

Full-Featured Client-Side API

ASPxDropDownEdit provides you with a comprehensive client-side API. This API is implemented using JavaScript and is exposed via the ASPxClientDropDownEdit object. The ASPxClientDropDownEdit object serves as the client-side equivalent of the ASPxDropDownEdit control.